import java.io.*;
class Two{
   int fir;
   int sec;
   Two(int a,int b){
  fir=a;
  sec=b;
  }
/*int add(){
     return fir+sec;
}
int sub(){
     return fir-sec;
}
int mul(){
     return fir*sec;
}
int div(){
    return fir/sec;
}*/
}
public class Caculate{
   public static void main(String[] args){
    Two mytwo=new Two(12,4);
    //int result=mytwo.add();
    System.out.println("Please input '+' '-' '*' '/'");
    char c=(char)System.in.read();
  /* if(c=='+')  System.out.println("12+4="+result);  
   if(c=='-')  System.out.println("12-4="+mytwo.sub());
    if(c=='*') System.out.println("12*4="+mytwo.mul());
    if(c=='/') System.out.println("12/4="+mytwo.div());
*/}
}
